Device for tapping mains



(No Model.) 3 Sheets-Sheet 1.

W. S. PAYNE.

DEVICE FOR TAPPING MAINS.

No. 309,085. Patented Dec. 9, 1884:.

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(No Model.) 3 Sheets-Sheet 2-.

W. S. PAYNE.

DEVICE FOR TAPPING MAINS.

N0. 309,085. Patented Dec. 9, 1884.;

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Patented Dec. 9, 1884.

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\VALTER S. PAYNE, OF TITUSVILLE, PENNSYLVANIA.

DEVICE FOR TAPPING MAINS.

SPECIFICATIQN forming part of Letters Patent No. 309,085, dated December9, 1884:.

Application filed January 21, 1884. (No model.)

To all whom it may concern.-

Be it known that I, WALTER S. PAYNE, a a citizen of the United States,residing at Titusville, in the county of Crawford and State ofPennsylvania, have invented a new and useful Device for Tapping Mains,of which the following is a specification, reference being had to theaccompanying drawings.

My invention relates to a device for tapping mains; and it has for itsobject to provide a device of this character which shall be cheap andsimple in its construction, effective in its operation, and strong anddurable.

WVith these ends in viewthe invention consists in the improvedconstruction and combinations of parts, hereinafter fully described, andpointed out in the claims.

In the drawings, Figure 1 is a perspective view showing my inventioncomplete and in position for operation. Fig. 2 is a vertical sectionalview. Fig. 3 is a part sectional elevation showing the device ready foradjusting a cock in the main, and Fig. 4 is a horizontal sectional viewthrough the chamber or casing.

In the accompanying drawings, in which like letters of referenceindicate corresponding parts in all the figures, A represents the mainor pipe to be tapped, and to which a connection is then to be made.

B is the casing of my improved device. Said casing consists of a hollowcasting, mainly cylindrical in form, and having in its bottom aneccentrically-located opening, 0, surrounded by a downwardly-extendingexteriorly-threaded flange, D.

E represents a curved saddle, the face curve of which corresponds to thecurve of the main to be tapped. A set of such saddles, with curves tofit mains of various sizes, may be furnished with each complete tappingdevice.

The saddle E has a central opening, F, surrounded by an upward]y-extendin g interiorlythreaded collar or flange, G, to receive theflange'D of easing B, which is thus connected to said saddle. The endsof the saddle are provided with lugs H, having notches I to receiveyokes J, having openings to receive eyebolts K, which are connectedunder the main by a chain, L. By tightening the nuts M upon the eyeboltsthe chain is tightened, and the saddle and easing thus firmly securedupon the main by the use of a single chain.

Between the saddle and the main :1 rubber gasket or collar, N, isinterposed in order to insure a water-tight joint.

The casing B has a revolving top plate, 0, which in the process ofmanufacture is put in the core of the casting for the chamber, which isthen cast around it, thereby saving a joint in the machine, andpreventing the possibility of a leak.

'Twadiametrically-opposite lugs, Q, are pro vided onthe inner side wallof the casing B, near the upper end thereof, said lugs extendinginwardly, as shown. A downwardly-extending lug, P, is provided on thetop plate, which is so arranged that when the top plate is turned it canmake but one-half of one revolution, as the top plate can only be movedthe distance between the two lugs Q, which, as before stated, is halfthe circumference of the casing.

' The top plate, 0, is provided with handles It, which are securedthereto, as shown, and by the use of which the tapping device may becarried. They also afford eonvenientmeans for turning the top plate whennecessary. The top plate, 0, is also provided with twodiametricallyopposite openings, S T. The former of these openings, S,has an upwardly-extending eXteriorly-threaded collar, U, to receive aninteriorly-threaded cap having an opening in its upper side, said collarand cap forming a guide for the cock-holding stem or mandrel V. Theother opening, T, is provided with a downwardly-extending tube, \V,larger in diameter than the drill to be used, and provided with anopening at its lower end, for the passage of said drill. The said tube\V is interiorly threaded near its upper end said cock Z is formed withan angular seat, A, near its upper end, for the reception of a wrench,by which it may be tightened in the main after it is adjusted therein.

The upper end of the stem of the mandrel V is threaded at B to receivean'extension, C, the upper end of which is squared to receive theadjusting-wrench. This extension is detached during the operation ofdrilling and tapping the main, in order not to interfere with theoperation of the wrench by which the tool is operated.

G represents a frame or casting, the lower end of which is formed with asemicircular seat, d, to receive the plug a, the flange b of said plugresting on said semicircular seat (1.

The upper end of the frame or casting G is provided with ascrew-threaded opening to receive a feed-screw, c, which is pointed atits iiiwer end, said pointed end resting or bearing in a recess ordepression formed in the top of the drill X.

A ratchet-wrench of any desired construction may be used to operate thedrill, the same, however, being fed downward to the pipe or main by thefeed-screw before the wrench is operated.

In the construction of the drill and tap, the wrench, and the stop-cookno novelty is here'- in claimed, and any well-known construction may beemployed which will operatein conjunction with the .parts constitutingand embodying my invention. The several parts may be made in anysuitable manner, and of any material which may be deemed preferable.

In operation, after adjusting the saddle upon the main, the stop-cock isadjusted upon the mandrel V, and inserted through the opening 0 into thecasing, the mandrelstem passing through the opening S of the top plate.The latter is then turned or reversed to bring the said mandrel and cockinto the position shown in Fig. 1. The casing is then attached to thesaddle, the drill or tap having been first inserted through the plug ainto the chamber,

its upper end projecting up through the plug a. The castingor frame G isthen adjusted upon the upper end of the plug a, and the ratchet-wrenchfitted on the end of the tap X. The said tap is then adjusted down uponthe main by means of the feed screw 0. The wrench may then be operateduntil a threaded opening of the desired size has been produced in themain. The drill is then withdrawn from said hole or opening, while ofcourse the water-tight casing B prevents the fluid from escaping. Thetop plate, 0, is then turned,

formed for its reception. The extension Oiis then adjusted upon themandrelstem, by means of which the cock may be readily adjusted in themain. The tapping device and the mandrel may then be detached, and thecock finally tightened in position by a suitabe wrench, for thereception of which the seat A was formed.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a device for tapping mains, the combination, with a suitablecasing provided with an opening, S, having an upwardly-extending collar,and a cap to fit the same, of a mandrel having screw-threads of variousdiameters, and an extension detachable therefrom, sub stantially as setforth.

2. In a device for tapping mains, the combination, with a suitablecasing, of a revolving top plate, and lugs for preventing said top platefrom making more than one half-revolution, as set forth.

3. In a device for tapping mains, the combination, with a suitablecasing having a revolving top plate provided with a downwardly-extendinginteriorly-threaded tube, lugs for preventingsaid top plate from makingmore than one half-revolution, an exteriorlythreaded plug fitting in thesame, a frame carrying a feed-screw, a drill-tap, and means foroperating the same to form an opening in the main, as set forth.

4. In a device for tapping mains, the combination, with a suitablecasing having inwardly-extending diametrically-oppositelugs, of a topplate having a downwardly-extending lug, whereby said top plate isprevented from making more than one half-revolution, substantially asset forth.

5. In a device for tapping mains, the combination, with a suitablecasing, of a revolving top plate, handles for moving the same secured tothe upper side thereof, and lugs for preventing said top plate frommaking more than one half-revolution, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

, WALTER S. PAYNE. Witnesses:

JOHN ONEILL, BEN'SKINNER.

